Spring-terminal for binding-posts.



c. H; SMITH.

SPRING TERMlNAL FOR BINDING POSTS.

i APPUCATION FILED DEC.25. l9l2.

1,245,628. Patented Nov. 6.1917;

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"35 with the device at normzil;

UNITED STATES PATENT OFFICE.

' onmns II. sIvIITII, or CHICAGO, ILLINOIS, Assmnon To xnrmooa swncmun41m SUPPLY COMPANY, or cmcnoo, ILLINOIS, A CORPORATION or ILLmoIl.

SPRING-TERMINAL FOE IBINDING-PQSTB.

Specification 01 Letters Patent. r Patented NOV, 6, 1917- Applicationfiled December 26, 1012. Serial in). 738,587.

To all whom it may concern:

Be it known that I, CI-IARIJJS H. SMITH, a citizen of the United Statesof America, residing in Chicago, county of Cook, and State of Illinois,have invented certain new and useful improvements in Spring-Terminalsfor Binding-Posts, of which the following is a specification.

My invention relates to binding posts and to do more particularly withdevices of this character which are actuated by spring tension toyieldingly hold a conductor. My invention is directed more particularlyto devices of the above character in which means are provided to holdthe cooperating clamping members but of holding relation,

an object of my invention being to provide such a device which is simpleof constructIon and cheap to manufacture.

In the accompanying drawing I have illustrated a preferred form of myinvention. with several views relating to the same de- 5 a left sideelevation of Fig. 1

showing the clamping sleeve in section and Fig. 6 iso View similar toFig. 5 but with. clamping sleeve held out of. clamping rela.

tion with the body portion; and

Fig. 7 shows the device with its parts in clamping relation and with a,conductor held the. eby.-

The particuhir embodiment of my invention as herein illustratedcomprises :1 body portion A, a clamping member B suitably connected andacting under the influence of aspringq. Thebody member-uh, comprises acentral, portion 1' prelerzibly hexagonal shaped and having a fasteningstud 2 adapted 10 exteml through the devieeto which to the post is to beattached and clamped by means of e. l as shown in Fig. 7; supporting sextends from the body portion 1, amlh sin hole 5 adapted to re- (E'eive"a. conductor/j The sleeve or clamping .n'lember B is slidi'ngly fi PPthe u 4 and has a locking means referably 'in the form of an annularshoul er 6 formed by cutting an annular groove inside'the'sleeve.

A. helical spring member 7 is positioned indo of the sleeve B andencircles the stu,d

4. A washer .8 is staked upon the end-of stud 4 after the spring 7isinserted in'the sleeve B, seid sprmg 7 being under a normal tensionwhile su ported between the shoulder 9 andithe was er 8 as illustratedin fig. ..i. stop 8 extends from the washer 8 and with An annularlocking projection-orv the clamping sleeve at normal as in Figs.

1 and 5, snid stop 8 rests inn slot 10- cut through it portion of thewall of sleeve B. With the device in posit on as shown in Fig- 5, arotation of elem ing mem B is ot permitted, but mem er B may be mov dlongitudinally upon the studso as to rmit the insertion of a conductorinto the ole 5.

A V-sha ed groove 11i's cut intothe clampmg sur ace of sleeve B 'so asto secure a greater holding-surface upon'the conductor at times. I

In devices of the-present character it is d w slrable to use a spring ofconsiderable ten- .sion' seas to securely hold the conductor,- and dueto the smallness of the device it is not convenient for the o era-cor tohold 'the clamping member out o clumping relation with the bod againstthe spring tension with one ban and the attemptto insert theecnducme'wi'th the other-b nd. espeeiully if thebindingpost is "placedin an inconvenient positlmn Therefore, haveorfranged"cooperating-holding means on the clamping and body portionsarranged so as to perrnlt movin the cluinpin member out of clampinginliition. and; ho ding it thus until "the operator desires to releaseit. To this end my invention is directed", and due to thecoiiperutionbetween th'e'lat'erul pro je :tion 8 and the shoulder 6 ofthe clam I ing member B, said clamping member l3 may be pulled upwardlyon the stud from. its normal position of Fig'bfi to its position asillustrated in Fig.6. Then a slight .t'urn of the member B takes slot 10away from stop 8 and brings said. stopif8 intohold- W I ingrelation.with the shoulderifi. Therefore,

fwhen the Operator releases hi s'holdfuponthe clamping member-ll" itremains in the position shown in Fig. 6. After the conductor has beeninserted into the opening 5, by rotating the member B, the slot. 10 uponcorning'bppdsi' the 'projcc'tionR allows the '--=ownwb,;rd yieldin" 1y,lm z-ibin the :bindingposts By 1; e term catch? int hc appendcd claimsI -c0ntemp1atc any means which the. movabl m mb r s min tiund ld o (if161i zigemerit with 'e "Stationary member: Whll I h ve 1 fi lilfiflill-gll yL IY I QD, in a preferred embodiment, I am aware thatmiychimgcs'; .ljujid fmridificaticns thereof are limited .tii thecx'actn struc- =b9ingfi ccnst Juli nsztcmpcrmit locking eve mcmber (in;of QIHYIIDIIIg relatlon ling post: 1 Including" a staiargil mlfl givflelafi ively j movable r. iavin'g; coiiperating clamping limit ninimsftcnrling to effect :unpingmiipcratiomsaigl mcmbersbeu, structcrl andcofiptsrating in-suchu hold the movnbl -mcrnber but ClnmI grclatimrwith' the stationar tlon I ma p tno hpr nja i li- L .gs id 1 d,chipping, m m e ciicb having noiimrnting nnrfnnvs for yieldlngly holdinga comlnclm, inn] :1 IJIUJPUUOH (mi-11ml by said-sn|') mrting-nwmlmr for00- uperutiaon. with. im annnliir 'runi'v in Sillll clnnlping invmbvr\\'li(-=r('-by \vlwn sn il i'lan'ipingmmnlbcr inmm 'ml ut nl' clampingrubitlQHvWltll'Sllk l supporting member nml is m tilted it is held null(if clumping origrngvlnvnl; ...w,i tli said snppmgting Inmnbvr. v

' 6. A spring'b'ifliling post inrlmling; :1 Stationary' ml-in'i'l-purand a I'Hlilbl\' (ly IHO VHlIlG IlllilllJP-l' OlICll Of1;ill(l memberslmving a or opcrguling clamping; sin-fare lnr lmliling' :1 conductor,resilir-nt nmnnn tending to vlfcct such clamping (eniifwratimi and a.member carried by Sill(l Stationary inmnl'nn for ()pel'fltlfili withSillll movablemember w'lirernby said nmvnblc member may be ulglnqwzluni;

nfplmn iing rub tim Witli said stationary member *nnilnr l'ensimr ofs;1i (l resilient means. T I l 17; K rim-mfg binding pbs t inclnilii'igrelutiv0ly .movalglv- (alolimrills 1m ving (foiipomtingclamping;surfaces, resilient mrizins tunding t0 -efl'ect.such clumpingcoiiperatiom means whereby said clei'ncnts may bQ-lllilflllfl l lysepamt'ed,"ai1d a (catch for .llQlll in-snch position.

8. A spring? bin (1 i'ri g p 0st comprising a statiomi-ry element aml llrelatively, movable element .lm ving cniipemting clamping snrfaccs,

means tending in. *yieldinglye ffect'.,;such

clamping cniipcrg'ition, 5:1 i (l movable elqnentadapted to be, ma'nnally moved out 0f cl.':imp'-- ingrclatficn with snirl stationary clement,and a w tch for holding sanl'movable elat n.5nqh position. 3 r

springbmdmg post including a body lampmg sleeve, arcnliralstud'exll alifl'ical n-ing pnsitiqned inside of ing said members gaid l i vencnibinnrl 'encir'clinggaid sliud,

leave 51ml bo l y member.- having 'coiiperihgsnrfaccs adapted forholding f10 spring bind g postcomprising a "main-.I-Iwmbixg clampingmember Slldflbly 'supportvd ovcn said mai member, 00617011;- ingmcunsfbr snidgrmpir and clamping members 'ud acptcd for hold ng a conductor,a

s'pring ax ing upon 's;

I a Hl'lfl 51nd clamping members furymllllngly inkling the said condlator, and arcutgglr :iflaptcd to, hold said H 11. I" a l'rinding posthe c 0 mbinat i op w1l:h; a ;Sl-1d:tblg clam ping: elmcnt normallymaintained in clamping :pbsition, of. a coopmting st atiomrry clampingelement; and

"clamping mmnbcr mlbof clamping relation means for maintaining StLld-SlldfllllG, clemnt i n upon-clumping,pe sition against the norma}tendencyitheflrggfwj t:-v I v 'elamping elements supported thereby,

12. In a binding post, the combination with a stud, of movable andstationary a 111 secured to one ofsaid clamping elements t he otherclamping element being formed with. a recess into which said pinprojects to permit the two clampingelements to assume clamping position1n contact with each other, and also formed with an abutting surface forengaging said pin when the movable clamping element is' separated fromthe other clamping element and rotated to bring the abutment intoalinement With the pin, and a spring for normallv holding the twoclamping members together in clamping position.

13. In a binding post, the combination with a stud, of movable and sationary clamping elements supported thereby, a look ing pin secured toone of said clamping elements and adapted to engage "with the other ofsaid elements, and a terminal clip having a locking recess adapted tofit over said pin,

whereby said terminal clip will be main tained against displacement,

14. 'In a binding post the combination with a stud, of movable andstetione clamping elements supported thereby, sai movable clampingelement being provided with a recess, a roi'eetion secured to said stetionary clamping e ement and adapted to BK. tend into the recess formedin the movable clamping element, whereby said movable ele: Inent may beprevented from turnin y when in clamping position andv maintained 1.1111011 clamping position, when the said element is raised and moved sothat the recess is o t f aiinement with said projection.

Signed In me at Chicago, in the county of Cook and tate of Illinois,mthe presence of two Witnesses. CHARLES H, SMITH, Witnesses:

G. E. MUELLER, B. OBnm w. I

